Gems, Jewelry, and Precious Metals
Showing 1929 products
![[Pre-owned] BVLGARI K18YG Allegra Multi-Colored Stone Pendant Necklace 24.7g ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000120966_3.jpg?v=1768444653&width=480)
![[Used] TASAKI K18YG MABE PEARL BROOCH 10.7g ONE PRICE](http://koufuku.jp/cdn/shop/files/2000000022345_2.jpg?v=1768444653&width=480)
![[Pre-owned] K18YG Pink Tourmaline Ring, T27.51ct, DD0.64ct, with GRJ Grading Report, 17.3g, Size 12](http://koufuku.jp/cdn/shop/files/2000000069722_3.jpg?v=1768444653&width=480)
![[Pre-owned] K18YG PURPLE SAPPHIRE RING PS1.56ct PS0.10ct D0.70ct with CGL Sorting, 7.2g, Size 15](http://koufuku.jp/cdn/shop/files/2000000075549_3.jpg?v=1768444653&width=480)
![[Pre-owned] K18WG Burmese Ruby Ring, R1.03ct D0.59ct, Pigeon Blood, with AIGS Certificate, 4.2g, Size 13](http://koufuku.jp/cdn/shop/files/DSC_3083.jpg?v=1774689642&width=480)
![[Used] K18YG/Enamel Pearl Brooch Baroque Pearl Brooch 8.6g](http://koufuku.jp/cdn/shop/files/2000000037851_2.jpg?v=1768444653&width=480)
![[Pre-owned] K18YG Ruby Ring R0.75ct D0.46ct 6.3g #10](http://koufuku.jp/cdn/shop/files/2000000121666_2.jpg?v=1768444653&width=480)
![[Pre-owned] PT900 Chrysoberyl Cat's Eye Ring CE1.45ct D0.53ct 6.8g #9](http://koufuku.jp/cdn/shop/files/2000000014517_2.jpg?v=1768444653&width=480)
![[Pre-owned] K18YG DIAMOND RING 1.51ct 6.1g #11](http://koufuku.jp/cdn/shop/files/2000000023717_2.jpg?v=1768444653&width=480)
![[Pre-owned] PT900/K18YG DIAMOND RING D1.035ct 7.3g #12](http://koufuku.jp/cdn/shop/files/2000000047843_2.jpg?v=1768444653&width=480)
![[Pre-owned] K18YG RUBY RING R0.27ct D0.10ct 3.0g #14](http://koufuku.jp/cdn/shop/files/2000000056173_2.jpg?v=1768444653&width=480)
![[Pre-owned] K18YG DIAMOND RING D1.00ct 4.3g #11](http://koufuku.jp/cdn/shop/files/2000000106267_2.jpg?v=1768444653&width=480)
![[Pre-owned] PT900 SAPPHIRE RING Sri Lankan Sapphire Ring S4.41ct D2.11ct GIA Certified 15.6g #19.5](http://koufuku.jp/cdn/shop/files/2000000018386_3.jpg?v=1768444671&width=480)
![[Pre-owned] K18WG Myanmar Ruby Ring, R1.22ct D1.10ct, Pigeon Blood, with AIGS Certificate, 5.4g, Size 13.5](http://koufuku.jp/cdn/shop/files/2000000070117_4.jpg?v=1768444671&width=480)
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![[Pre-owned] K18WG/YG NO HEAT RUBY RING Mozambique Untreated Ruby Ring R2.02ct D1.25ct Pigeon Blood AIGS Certificate 5.1g #15](http://koufuku.jp/cdn/shop/files/2000000038117_3.jpg?v=1768444671&width=480)
![[Pre-owned] K18WG SAPPHIRE RING Sapphire Ring S5.74ct D1.70ct 7.4g #13.5](http://koufuku.jp/cdn/shop/files/2000000050386_2.jpg?v=1768444671&width=480)
![[Pre-owned] K18WG NO HEAT RUBY RING Mozambique Untreated Ruby Ring R1.30ct D0.48ct GRS Certified 5.7g #13](http://koufuku.jp/cdn/shop/files/2000000068329_4.jpg?v=1768444671&width=480)
![[Pre-owned] K18WG Myanmar Ruby Ring, Burmese Ruby R1.01ct D1.63ct Pigeon Blood, with AIGS Certificate, 6.8g, Size 13](http://koufuku.jp/cdn/shop/files/2000000070056_4.jpg?v=1768444671&width=480)
![[Pre-owned] PT900 NO HEAT RUBY RING, R2.33ct D1.60ct, with GIA Report, 6.6g, Size 13](http://koufuku.jp/cdn/shop/files/2000000011417_3.jpg?v=1768444671&width=480)
![[Pre-owned] PT950 NO HEAT RUBY RING, 2.02ct Ruby, 1.69ct Diamond, Pigeon Blood, AIGS Certified, 11.3g, Size 12](http://koufuku.jp/cdn/shop/files/2000000018447_3.jpg?v=1768444671&width=480)
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![[Pre-owned] K18YG SAPPHIRE RING, Sri Lankan Sapphire 8.26ct, Diamond 3.15ct, GIA Report, 13.8g, Size 13](http://koufuku.jp/cdn/shop/files/2000000042404_3.jpg?v=1768444671&width=480)
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![[Pre-owned] K18YG MULTI-STONE PENDANT (Convertible Brooch), with Diamond, 17.4g](http://koufuku.jp/cdn/shop/files/2000000114415_2.jpg?v=1768444671&width=480)
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![[Pre-owned] PT900 SAPPHIRE RING, S7.25ct, D0.87ct, AIGS Appraisal Report, 10.3g, Size 15](http://koufuku.jp/cdn/shop/files/2000000095073_4.jpg?v=1768444672&width=480)
![[Pre-owned] MITSUKOSHI K18YG Ruby & Diamond Ring R0.79ct D0.82ct 7.8g #12.5](http://koufuku.jp/cdn/shop/files/2000000145907_2.jpg?v=1788151913&width=480)
![[Used] PT900 NO HEAT SAPPHIRE RING Sri Lankan Unheated Sapphire Ring S5.40ct D1.19ct GIA Certificate 10.4g #11.5](http://koufuku.jp/cdn/shop/files/2000000133799_3.jpg?v=1777881348&width=480)
![Used] K18YG ENAMEL PENDANT NECKLACE 13.4g](http://koufuku.jp/cdn/shop/files/2000000134116_2.jpg?v=1778489330&width=480)